pe.egcc.app.demo.Demo02.java Source code

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Here is the source code for pe.egcc.app.demo.Demo02.java

Source

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package pe.egcc.app.demo;

import java.awt.image.BufferedImage;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.data.general.DefaultPieDataset;

/**
 *
 * @author Profesor
 */
public class Demo02 extends javax.swing.JFrame {

    /**
     * Creates new form Demo02
     */
    public Demo02() {
        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the form. WARNING: Do NOT modify this code. The content of this method is always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        btnMostrar = new javax.swing.JButton();
        panelGrafico = new javax.swing.JPanel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        btnMostrar.setText("Mostrar Grfico");
        btnMostrar.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnMostrarActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout panelGraficoLayout = new javax.swing.GroupLayout(panelGrafico);
        panelGrafico.setLayout(panelGraficoLayout);
        panelGraficoLayout.setHorizontalGroup(panelGraficoLayout
                .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGap(0, 503, Short.MAX_VALUE));
        panelGraficoLayout.setVerticalGroup(panelGraficoLayout
                .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGap(0, 350, Short.MAX_VALUE));

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(layout.createSequentialGroup().addContainerGap()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                .addComponent(btnMostrar, javax.swing.GroupLayout.PREFERRED_SIZE, 130,
                                        javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addComponent(panelGrafico, javax.swing.GroupLayout.PREFERRED_SIZE,
                                        javax.swing.GroupLayout.DEFAULT_SIZE,
                                        javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addContainerGap(20, Short.MAX_VALUE)));
        layout.setVerticalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(layout.createSequentialGroup()
                        .addComponent(btnMostrar, javax.swing.GroupLayout.PREFERRED_SIZE, 64,
                                javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(18, 18, 18).addComponent(panelGrafico, javax.swing.GroupLayout.DEFAULT_SIZE,
                                javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                        .addContainerGap()));

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void btnMostrarActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnMostrarActionPerformed
        // Definiendo la fuente de datos
        DefaultPieDataset data = new DefaultPieDataset();
        data.setValue("Artculo 1", 40.55);
        data.setValue("Artculo 2", 81.23);
        data.setValue("Artculo 3", 61.54);

        // Creando el grfico
        JFreeChart chart = ChartFactory.createPieChart("Ejemplo de Grfico Tipo Pastel", // Ttulo del grfico
                data, // DataSet
                true, // Leyenda
                true, // ToolTips
                true);

        // Dibujando el grfico en un jPanel
        BufferedImage imagen = chart.createBufferedImage(panelGrafico.getWidth() - 2, panelGrafico.getHeight() - 2);
        panelGrafico.getGraphics().drawImage(imagen, 1, 1, null);
    }//GEN-LAST:event_btnMostrarActionPerformed

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
        * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
        */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(Demo02.class.getName()).log(java.util.logging.Level.SEVERE, null,
                    ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(Demo02.class.getName()).log(java.util.logging.Level.SEVERE, null,
                    ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(Demo02.class.getName()).log(java.util.logging.Level.SEVERE, null,
                    ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(Demo02.class.getName()).log(java.util.logging.Level.SEVERE, null,
                    ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Demo02().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton btnMostrar;
    private javax.swing.JPanel panelGrafico;
    // End of variables declaration//GEN-END:variables
}